Tea is one of the three most popular drinks in the world - together with beer and coffee. Around 2 billion people drink tea as a habit every day, and over 160 countries have tea trading in their own country. China was the only country which exported tea worldwide from the beginning. But as tea plantation gradually emerged in other countries, tea trades became much easier and widespread. Together with soaring demand, different kinds of tea plants were being explored and appeared in the markets.

China's export of tea played a critical role in spreading tea and the tea drinking culture to the world. How did this all happen? Let's find out.